fix travis

.travis.yml

@@ -4,7 +4,7 @@ python:
 before_install:
   - sudo apt-get install -y checkinstall build-essential
   - sudo apt-get install portaudio19-dev
-  - sudo apt-get install libconfig-dev libvpx-dev libopus-dev check -qq
+  - sudo apt-get install libconfig-dev libvpx-dev check -qq
 install:
   - pip install PySide --no-index --find-links https://parkin.github.io/python-wheelhouse/;
   - python ~/virtualenv/python${TRAVIS_PYTHON_VERSION}/bin/pyside_postinstall.py -install
@@ -18,14 +18,6 @@ before_script:
   - make -j3
   - sudo make install
   - cd ..
-# VPX
-  - git clone https://chromium.googlesource.com/webm/libvpx
-  - cd libvpx
-  - ./configure --enable-shared
-  - make -j3 >/dev/null
-  - sudo make install
-  - cd ..
-  - sudo ldconfig
 # Libsodium
   - git clone git://github.com/jedisct1/libsodium.git
   - cd libsodium